期刊
ACS NANO
卷 7, 期 11, 页码 10424-10432出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn405209u
关键词
triboelectric nanogenerator; 3D spiral structure; buoy ball; self-powered sensor
类别
资金
- Basic Energy Sciences DOE
- MURI from Airforce,
- Knowledge Innovation Program of the Chinese Academy of Sciences [KJCX2-YW-M13]
- Thousands Talents Program for a pioneer researcher and his innovation team, China
An unstable mechanical structure that can self-balance when perturbed is a superior choice for vibration energy harvesting and vibration detection. In this work, a suspended 3D spiral structure is integrated with a triboelectric nanogenerator (TENG) for energy harvesting and sensor applications. The newly designed vertical contact-separation mode TENG has a wide working bandwidth of 30 Hz in low-frequency range with a maximum output power density of 2.76 W/m(2) on a load of 6 M ohm. The position of an in-plane vibration source was identified by placing TENGs at multiple positions as multichannel, self-powered active sensors, and the location of the vibration source was determined with an error less than 6%. The magnitude of the vibration is also measured by the output voltage and current signal of the TENG. By integrating the TENG inside a buoy ball, wave energy harvesting at water surface has been demonstrated and used for lighting illumination light, which shows great potential applications in marine science and environmental/infrastructure monitoring.
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